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000
FXUS65 KREV 221000
AFDREV

Area Forecast Discussion
National Weather Service Reno NV
300 AM PDT Mon Apr 22 2024

.SYNOPSIS...
High pressure will maintain well above normal temperatures with
mostly dry conditions through today. Unsettled and more active
weather returns Tuesday and beyond, including much cooler
temperatures by the week`s end and daily chances of showers and
thunderstorms.

&&

.DISCUSSION...

* Warm Conditions Continue Early This Week: The Reno airport had its
  first 80 degree day of the year yesterday. High temperatures will
  remain 10-15 degrees above normal, albeit a little cooler than
  Sunday. The above normal temperatures have accelerated the
  snowmelt, which has contributed to higher flows on creeks,
  streams, and rivers. The West Fork of the Carson at Woodfords
  continues to waver near monitor stage early this week because of
  the warmer conditions.

* Shower and Thunderstorm Chances This Week: High pressure shifts
  eastward on Tuesday resulting in chances (15-25%) for an isolated
  shower or storm Tuesday. As a cutoff low and shortwave interact
  across the West Wednesday, precipitation potential increases to 20-
  45% for areas south of Highway 50 and in far northern
  Lassen/Washoe along the OR border. Showers along with a handful of
  thunderstorms will be possible with gusty outflow winds and a
  lightning risk.

* Cooling Off Late in the Week: With the exit of high pressure
  (along with several incoming troughs), we will see a return to
  average and even below average temperatures later this week and
  into the weekend. With this shift there will be increased
  potential for rain as well as mountain snow showers Friday into
  Saturday. There may even be some accumulations on Friday night
  into Saturday. The cooler temperatures will slow snowmelt with
  lesser flows on area waterways.

* Extended outlook hints that temperatures will remain on the cool
  side beyond the weekend into early next week. Precipitation
  potential remains on the table with a little more than half of the
  ensembles targeting general troughiness migrating from the Pacific
  Northwest into the Sierra and western Nevada.

-Edan

&&

.AVIATION...
Outside of some patchy freezing fog near KTRK early this morning,
plan on VFR conditions much of today. By the afternoon, there may be
a few cumulus buildups in the southern Sierra, but less than a 15%
chance for a shower or storm. Our typical westerly afternoon breezes
return again today with gusts generally out of the west at 15-20 mph.

Unsettled weather becomes more of the norm from Tuesday onward as
high pressure shifts eastward in response to incoming troughs
Tuesday into Wednesday. More widespread rain and thunderstorms
chances arrive Wednesday, while the potential for Sierra snow
returns late this week.

-Edan

&&


.REV Watches/Warnings/Advisories...
NV...None.
CA...None.
&&

$$